ci: update dockerfiles

oragono got renamed, and distros have been updated in the last decade

docker/test/debian/Dockerfile

@@ -1,18 +1,16 @@
 # This Dockerfile creates a docker image suitable to run biboumi’s build and
 # tests.  For example, it can be used on with gitlab-ci.
 
-FROM docker.io/debian:buster
+FROM debian:bookworm
 
-ENV LC_ALL C.UTF-8
+ENV LC_ALL=C.UTF-8
 
-RUN apt update
-
-# Needed to build biboumi
-RUN apt install -y --no-install-recommends \
+RUN apt update && apt install -y --no-install-recommends \
 git \
 make \
 cmake \
 g++ \
+ca-certificates \
 libuuid1 \
 libudns-dev \
 libexpat1-dev \
@@ -24,15 +22,10 @@ uuid-dev \
 libgcrypt20-dev \
 libpq-dev \
 valgrind \
-libasan5 \
-libubsan0 \
-python3-pip \
+libasan6 \
+libubsan1 \
 python3-lxml \
-python3-dev \
+python3-slixmpp \
 wget
 
 RUN wget "https://github.com/oragono/oragono/releases/download/v2.0.0/oragono-2.0.0-linux-x64.tar.gz" && tar xvf oragono-2.0.0-linux-x64.tar.gz && cp oragono-2.0.0-linux-x64/oragono /usr/local/bin
-
-# Install slixmpp, for e2e tests
-RUN git clone https://github.com/saghul/aiodns.git && cd aiodns && git checkout 7ee13f9bea25784322~ && python3 setup.py build && python3 setup.py install && git clone https://lab.louiz.org/poezio/slixmpp && pip3 install pyasn1 && cd slixmpp && python3 setup.py build && python3 setup.py install
-